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公开(公告)号：US20140020424A1
公开(公告)日：2014-01-23
申请号：US14007183
申请日：2012-03-21
IPC分类号： F25B41/00
CPC分类号： F25B41/00 , B60H2001/3298 , F25B41/06 , F25B41/062 , F25B2341/0012
摘要： A body part of a decompression device has a swirl space for swirling a refrigerant that flows from a refrigerant inlet, and a refrigerant outlet that is positioned on an extension line of a swirl center line of the refrigerant and functions as a throttle. Further, a passage cross-sectional area of the refrigerant inlet is configured to be smaller than a twelve-fold value of a passage cross-sectional size of the refrigerant outlet, such that a swirl speed of the refrigerant in the swirl space is increased so as to enable a decompression boiling of the refrigerant around the swirl center line. In such manner, a gas-liquid mixture phase refrigerant securely flows into the refrigerant outlet, and it restricts a fluctuation of a flow amount of the refrigerant flowing toward a downstream side without complicating a cycle structure.
摘要翻译： 减压装置的主体部分具有用于旋转从制冷剂入口流动的制冷剂的旋转空间和位于制冷剂的涡流中心线的延长线上并用作节流阀的制冷剂出口。 此外，制冷剂入口的通道横截面面积被构造成小于制冷剂出口的通道横截面尺寸的十二倍的值，使得涡流空间中的制冷剂的旋转速度增加 以使得围绕涡流中心线的制冷剂的减压沸腾。 以这种方式，气液混合相制冷剂可靠地流入制冷剂出口，并且限制制冷剂流向下游侧的流量的波动而不会使循环结构复杂化。
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公开(公告)号：US07757514B2
公开(公告)日：2010-07-20
申请号：US10581088
申请日：2005-09-22
CPC分类号： F25B41/067 , B60H2001/3298 , F25B5/00 , F25B41/00 , F25B47/02 , F25B2341/0012 , F25B2400/0403 , F25B2600/2501 , F25B2600/2513 , F25B2700/21173
摘要： An ejector-type refrigerant cycle device includes: a first evaporator 15 that evaporates refrigerant flowing out of an ejector 14; a branch passage 17 that branches a flow of refrigerant between a radiator 13 and the ejector 14 and guides this flow of refrigerant to a vapor-phase refrigerant suction port 14c of the ejector 14; a throttling mechanism 18 disposed in the branch passage 17; and a second evaporator 19 disposed downstream of the throttling mechanism 18 with respect to the flow of refrigerant. The throttling mechanism 18 is constructed to be provided with a fully opening function, and to fully open the branch passage 17 when the second evaporator 19 is defrosted. Therefore, in an ejector-type refrigerant cycle device including multiple evaporators, the function of defrosting the evaporators can be carried out with a simple construction.
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公开(公告)号：US07367202B2
公开(公告)日：2008-05-06
申请号：US11503892
申请日：2006-08-14
IPC分类号： F25B1/06
CPC分类号： F25B41/00 , B60H2001/3298 , F25B40/02 , F25B2341/0011 , F25B2341/0012 , F25B2400/16 , F25B2500/18
摘要： A refrigerant cycle device includes a compressor for compressing refrigerant, a condenser for cooling and condensing high-pressure refrigerant discharged from the compressor, a vapor-liquid separator located at a refrigerant outlet side of the condenser for separating refrigerant from the condenser into vapor refrigerant and liquid refrigerant, a supercooling device for supercooling the liquid refrigerant from the vapor-liquid separator, an ejector having a nozzle part for decompressing refrigerant downstream from a refrigerant outlet side of the condenser and a refrigerant suction port for drawing refrigerant by a high-velocity flow of refrigerant jetted from the nozzle part, a throttle member which decompresses the liquid refrigerant supercooled by the supercooling device, an evaporator located at a downstream side of the throttle member and is connected to the refrigerant suction port of the ejector. Accordingly, cooling capacity of the evaporator can be improved without lowering a density of refrigerant drawn into the compressor.
摘要翻译： 制冷剂循环装置包括用于压缩制冷剂的压缩机，用于冷却和冷凝从压缩机排出的高压制冷剂的冷凝器，位于冷凝器的制冷剂出口侧的气液分离器，用于将制冷剂从冷凝器分离成蒸气制冷剂， 液体制冷剂，用于使来自气液分离器的液体制冷剂过冷的过冷却装置，具有用于使从冷凝器的制冷剂出口侧下游的制冷剂减压的喷嘴部的喷射器和用于以高速流动吸引制冷剂的制冷剂吸入口 从喷嘴部喷射的制冷剂，对由过冷却装置过冷却的液体制冷剂进行减压的节流部件，位于节流部件下游侧的蒸发器，并与喷射器的制冷剂吸入口连接。 因此，可以提高蒸发器的冷却能力，而不会降低吸入压缩机的制冷剂的密度。
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公开(公告)号：US07320229B2
公开(公告)日：2008-01-22
申请号：US11497032
申请日：2006-07-31
IPC分类号： F25B1/06
CPC分类号： F25B41/00 , B60H2001/3298 , F25B40/00 , F25B41/067 , F25B2341/0012 , F25B2341/0661 , F25B2400/052 , F25B2500/11
摘要： A branch passage, which is branched at a point on an upstream side of an ejector, is connected to a refrigerant suction inlet of the ejector. An evaporator is arranged in the branch passage, and a capillary tube is arranged on an upstream side of the evaporator.
摘要翻译： 在喷射器的上游侧的点分支的分支通路与喷射器的制冷剂吸入口连接。 蒸发器设置在分支通道中，毛细管布置在蒸发器的上游侧。
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公开(公告)号：US20070163293A1
公开(公告)日：2007-07-19
申请号：US11653474
申请日：2007-01-12
CPC分类号： F25B41/00 , F25B5/00 , F25B40/00 , F25B40/02 , F25B2341/0011 , F25B2600/2507
摘要： An ejector refrigerant cycle device includes a radiator for radiating heat of high-temperature and high-pressure refrigerant discharged from a compressor, a branch portion for branching a flow of refrigerant on a downstream side of the radiator into a first stream and a second stream, an ejector that includes a nozzle portion for decompressing and expending refrigerant of the first stream from the branch portion, a decompression portion for decompressing and expanding refrigerant of the second stream from the branch portion, and an evaporator for evaporating refrigerant on a downstream side of the decompression portion. The evaporator has a refrigerant outlet coupled to the refrigerant suction port of the ejector. Furthermore, a refrigerant radiating portion is provided for radiating heat of refrigerant while the decompression portion decompresses and expands refrigerant. For example, the refrigerant radiating portion is provided in an inner heat exchanger.
摘要翻译： 喷射器制冷剂循环装置包括用于散发从压缩机排出的高温高压制冷剂的散热器的散热器，将散热器的下游侧的制冷剂流分支为第一流和第二流的分支部， 喷射器，其包括用于从分支部分减压和消耗第一流的制冷剂的喷嘴部分，用于从分支部分减压和膨胀第二流的制冷剂的减压部分和用于在第二流的下游侧蒸发制冷剂的蒸发器 减压部分。 蒸发器具有联接到喷射器的制冷剂吸入口的制冷剂出口。 而且，在减压部减压膨胀制冷剂的同时，设置制冷剂的散热部，用于散热制冷剂的热量。 例如，制冷剂散热部设置在内部热交换器中。
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公开(公告)号：US20070039337A1
公开(公告)日：2007-02-22
申请号：US11501557
申请日：2006-08-09
CPC分类号： F25B41/00 , B60H2001/3298 , F25B5/00 , F25B2309/06 , F25B2341/0012 , F25B2341/0013 , F25B2500/01 , F25B2500/19 , F28D1/0408 , F28D1/05366
摘要： An ejector cycle device includes a compressor, a refrigerant radiator, an ejector having a nozzle part and a refrigerant suction port, and a branch passage for introducing refrigerant branched on an upstream side of the nozzle part of the ejector in a refrigerant flow into the refrigerant suction port. Furthermore, a first evaporator is arranged on a downstream side of the ejector in the refrigerant flow, and a second evaporator is arranged in the branch passage. In addition, in the ejector cycle device, a refrigerant flow rate ratio (α) of a flow rate of refrigerant flowing in the second evaporator to a flow rate of refrigerant discharged from the compressor is set within a range from 0.07 or more to 0.93 or less. In this case, COP of the ejector cycle device can be effectively improved.
摘要翻译： 喷射器循环装置包括压缩机，制冷剂散热器，具有喷嘴部分和制冷剂吸入口的喷射器，以及用于将制冷剂流中喷射器的喷嘴部分的上游侧分支的制冷剂引入制冷剂的分支通道 吸入口 此外，第一蒸发器设置在制冷剂流中的喷射器的下游侧，并且第二蒸发器布置在分支通道中。 此外，在喷出循环装置中，在第二蒸发器中流动的制冷剂的流量与从压缩机排出的制冷剂的流量的制冷剂流量比（α）设定在0.07以上至0.93以下的范围内 减。 在这种情况下，可以有效地提高喷射器循环装置的COP。
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公开(公告)号：US06877339B2
公开(公告)日：2005-04-12
申请号：US10868635
申请日：2004-06-15
CPC分类号： F25B41/00 , B60H2001/3298 , F25B9/008 , F25B2309/061 , F25B2341/0011 , F25B2341/0012 , F25B2341/0013 , F25B2341/0683 , F25B2600/2513 , F25B2700/21175
摘要： In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, a variable throttle device is disposed upstream from the nozzle to decompress and expand high-pressure refrigerant flowing from a condenser. For example, the variable throttle device decompresses the high-pressure refrigerant in a gas-liquid two-phase state at an upstream position from the nozzle of the ejector. In addition, the variable throttle device includes a back pressure chamber having an inner pressure that changes by sensing a refrigerant temperature at a refrigerant outlet side of an evaporator, and a pressure introducing means for introducing a refrigerant pressure of a refrigerant outlet side of the evaporator to a side opposite to the back pressure chamber with respect to a diaphragm. Therefore, a pressure difference between the back pressure chamber and the side opposite to the back pressure chamber can be made smaller.
摘要翻译： 在具有用于减压制冷剂的喷嘴的喷射器的喷射器循环中，可变节流装置设置在喷嘴的上游，以对从冷凝器流出的高压制冷剂进行减压和膨胀。 例如，可变节流装置在喷射器的喷嘴的上游位置对气液两相状态的高压制冷剂进行减压。 此外，可变节流装置包括：背压室，其具有通过感测蒸发器的制冷剂出口侧的制冷剂温度而变化的内部压力;以及压力引入装置，用于引入蒸发器的制冷剂出口侧的制冷剂压力 相对于隔膜与背压室相对的一侧。 因此，能够使背压室与背压室相反的一侧的压差变小。
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公开(公告)号：US06871506B2
公开(公告)日：2005-03-29
申请号：US10617207
申请日：2003-07-10
CPC分类号： F25B41/00 , F25B9/008 , F25B41/062 , F25B2309/061 , F25B2341/0012 , F25B2341/0013 , F25B2500/01 , F25B2500/18 , F25B2700/21151 , F25B2700/21175
摘要： In an ejector cycle with an ejector including a nozzle for decompressing refrigerant, a variable throttle is disposed upstream from the nozzle of the ejector to decompress and expand high-pressure refrigerant flowing from a radiator. For example, the variable throttle decompresses and expands the high-pressure refrigerant in a gas-liquid two-phase state at an upstream position from the nozzle of the ejector. The variable throttle controls a throttle opening degree so that a refrigerant super-heating degree at a refrigerant outlet side of an evaporator or at a refrigerant suction side of a compressor becomes in a predetermined range. Accordingly, the ejector cycle has an improved nozzle efficiency and an improved ejector efficiency in a wide load variation range of the ejector cycle.
摘要翻译： 在具有喷射器的喷射器循环中，喷射器包括用于减压制冷剂的喷嘴，可变节气门设置在喷射器的喷嘴的上游，用于对从散热器流动的高压制冷剂进行减压和膨胀。 例如，可变节流阀在喷射器的喷嘴的上游位置减压并膨胀处于气液两相状态的高压制冷剂。 可变节气门控制节气门开度，使得在蒸发器的制冷剂出口侧或压缩机的制冷剂吸入侧的制冷剂过热度变为预定范围。 因此，喷射器循环在喷射器循环的宽负载变化范围内具有改进的喷嘴效率和改进的喷射器效率。
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公开(公告)号：US10527329B2
公开(公告)日：2020-01-07
申请号：US12867025
申请日：2009-04-16
申请人： Hiroshi Oshitani , Kenichi Fujiwara , Haruyuki Nishijima , Etsuhisa Yamada , Tooru Ikemoto , Youhei Nagano
发明人： Hiroshi Oshitani , Kenichi Fujiwara , Haruyuki Nishijima , Etsuhisa Yamada , Tooru Ikemoto , Youhei Nagano
摘要： In an ejector-type refrigeration cycle device provided with a first compression mechanism and a second compression mechanism, a refrigerant outlet of a suction side evaporator is coupled to a refrigerant suction port of the ejector, and a second compression mechanism is provided between the suction side evaporator and the refrigerant suction port of the ejector. Thus, even in an operation condition in which suction capacity of the ejector is decreased in accordance with a decrease of the flow amount of a drive flow of the ejector, the suction capacity of the ejector can be supplemented by the operation of the second compression mechanism. Accordingly, even when a variation in the flow amount of the drive flow is caused, the ejector-type refrigeration cycle device can be stably operated.
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公开(公告)号：US08814532B2
公开(公告)日：2014-08-26
申请号：US13065695
申请日：2011-03-28
申请人： Gouta Ogata , Kazunori Mizutori , Masahiko Ikawa , Yasuhiro Tamatsu , Hiroki Nakagawa , Haruyuki Nishijima , Mika Gocho
发明人： Gouta Ogata , Kazunori Mizutori , Masahiko Ikawa , Yasuhiro Tamatsu , Hiroki Nakagawa , Haruyuki Nishijima , Mika Gocho
摘要： A nozzle of an ejector depressurizes and injects fluid, which is supplied to the nozzle. The nozzle is received in a receiving space of a body. The nozzle and the body are formed by press working. The nozzle includes nozzle-side ribs, which extend in an axial direction and project radially outward. The body includes body-side ribs, which extend in the axial direction and project radially outward. In a predetermined cross section of each of the nozzle and the body, which is perpendicular to the axial direction and includes the corresponding ribs, the nozzle or the body is formed seamlessly as a continuous single piece member.
摘要翻译： 喷射器的喷嘴减压并喷射供给喷嘴的流体。 喷嘴被容纳在身体的容纳空间中。 喷嘴和主体通过冲压加工形成。 喷嘴包括沿轴向延伸并径向向外突出的喷嘴侧肋。 主体包括沿轴向延伸并径向向外突出的主体侧肋。 在每个喷嘴和主体的垂直于轴向方向并且包括相应的肋的预定横截面中，喷嘴或主体无缝地形成为连续的单件构件。
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